Finding the Third Proportional to 917,103 and 1,223,131.50

Step by Step Solution

1. Step 1: Write the proportion equation
   917,103 : 1,223,131.50 = 1,223,131.50 : x
2. Step 2: Convert to fraction form
   917,103/1,223,131.50 = 1,223,131.50/x
3. Step 3: Cross multiply
   917,103x = 1,223,131.50 × 1,223,131.50
4. Step 4: Simplify right side
   917,103x = 1,496,050,666,292.25
5. Step 5: Solve for x
   x = 1,496,050,666,292.25/917,103
6. Step 6: Final answer
   x = 1,631,278.78